Alert archive / Louisiana / Flash Flood Warnings in 2002

Flash Flood Warning 30, NWS Lake Charles, LA

December 3, 2002Allen Parish, Beauregard Parish, Calcasieu Parish, Louisiana

NWS Lake Charles, LA issued this flash flood warning at Dec 3, 2002, 6:59 PM CST for Allen Parish, Beauregard Parish, Calcasieu Parish, Louisiana. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Dec 3, 2002, 6:59 PM CST (00:59 UTC)
Expired
Dec 3, 2002, 9:00 PM CST
In force
2 hr
Issued by
NWS Lake Charles, LA
Area
Counties, with a storm outline in the text

Counties Allen Parish, LA, Beauregard Parish, LA, Calcasieu Parish, LA

The radar

The Lake Charles radar (KLCH), 45 km from the middle of the area, began a volume at 00:59 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 1.0 hours before the alert went out and 226 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Shreveport, LA at 00:00Z on 2002-12-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 00:00Z on 2002-12-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 287 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
514 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
287 m²/s²
0-3 km storm-relative helicity
528 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS54 KLCH 040059
FFWLCH
LAC003-011-019-040300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
659 PM CST TUE DEC 3 2002

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ALLEN PARISH IN SOUTHWEST LOUISIANA
  BEAUREGARD PARISH IN SOUTHWEST LOUISIANA
  CALCASIEU PARISH IN SOUTHWEST LOUISIANA

* UNTIL 900 PM CST

* AT 655 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATED   
  THAT 5 TO 8 INCHES OF RAIN HAS FALLEN ACROSS PORTIONS OF CALCASIEU 
  AND SOUTHERN BEAUREGARD PARISHES DURING THE PAST 6 TO 8 HOURS. AN 
  ESTIMATED 3 TO 5 INCHES OF RAIN HAS FALLEN ACROSS SOUTHWESTERN 
  ALLEN PARISH. NUMEROUS SHOWERS CONTINUE TO MOVE ACROSS SOUTHWEST   
  LOUISIANA AND ANOTHER INCH OF RAINFALL IS EXPECTED ACROSS PORTIONS 
  OF THE WARNED AREA...ESPECIALLY ALLEN PARISH...THROUGH 9 PM. THIS 
  ADDITIONAL RAINFALL WILL ONLY AGGREVATE THE ONGOING FLOODING IN 
  THESE PARISHES.

HEAVY RAINS FLOOD ROADS AND LOW LYING AREAS RAPIDLY...SO DO NOT DRIVE
YOUR VEHICLE WHERE WATERS OF AN UNKNOWN DEPTH COVERS THE ROAD. MOST 
FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES.

CALL 337-477-5285 TO REPORT FLOODING TO THE WEATHER SERVICE.

LAT...LON 3089 9258 3053 9261 3043 9314 3006 9300
          3007 9371 3043 9371 3085 9356

$$

LGE
2 follow-up statements
000 
WGUS74 KLCH 040209
FFSLCH
LAC003-011-019-040315-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
808 PM CST TUE DEC 3 2002

...FLASH FLOOD WARNING CANCELED FOR CALCASIEU PARISH...
...FLASH FLOOD WARNING CONTINUES FOR ALLEN AND BEAUREGARD PARISHES IN
CENTRAL LOUISIANA UNTIL 9 PM...

AT 8 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR IN LAKE CHARLES
SHOWS THAT RAINFALL HAS DIMINISHED TO JUST SCATTERED LIGHT SHOWERS
ACROSS NORTHWEST CALCASIEU PARISH. ADDITIONAL RAINFALL AMOUNTS
ACROSS THIS PART OF THE PARISH THROUGH THIS EVENING ARE EXPECTED TO
BE AROUND ONE-TENTH INCH...WITH LITTLE ADDITIONAL RAINFALL LIKELY
THROUGH MIDNIGHT FOR THE REMAINDER OF CALCASIEU PARISH. THEREFORE THE
FLASH FLOOD WARNING IS BEING CANCELED. THE HEAVY RAINS OF TODAY HAVE
CAUSED FLOODING OR PONDING OF WATER ON AREA ROADWAYS...AND ALTHOUGH
THE WATER WILL BE RECEDING RESIDENTS ARE STILL URGED TO REMAIN OFF
ROADS THIS EVENING IF POSSIBLE.

LIGHT TO MODERATE RAIN CONTINUES TO AFFECT MOST OF BEAUREGARD AND
ALLEN PARISHES. RAINFALL AMOUNTS THROUGH 9 PM WILL AVERAGE ONE-
QUARTER INCH...WITH UP TO AN INCH POSSIBLE IN POCKETS OF HEAVIER
RAIN. THIS ADDITIONAL RAINFALL WILL ONLY AGGRAVATE ONGOING FLOODING
ACROSS THESE PARISHES. MOST OF THE HEAVIER RAIN WILL MOVE OUT OF
BEAUREGARD AND ALLEN PARISHES BY 9 PM.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLASH FLOODS. DO NOT DRIVE INTO FLOODED AREAS OR ATTEMPT
TO CROSS ROADWAYS COVERED BY HIGH WATER.

$$

LGE
000 
WGUS74 KLCH 040313
FFSLCH
LAC003-011-040355-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
912 PM CST TUE DEC 3 2002

...FLASH FLOOD WARNING FOR ALLEN AND BEAUREGARD PARISHES HAS
EXPIRED...

AT 9 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR IN LAKE CHARLES
SHOWED A FEW LINGERING LIGHT SHOWERS ACROSS BEAUREGARD AND ALLEN
PARISHES. A FEW SHOWERS WILL DEVELOP AND MOVE NORTHEAST ACROSS THE
AREA FOR THE REMAINDER OF THIS EVENING...BUT ADDITIONAL RAINFALL
AMOUNTS WILL BE LIGHT. THEREFORE THE FLASH FLOOD WARNING FOR ALLEN
AND BEAUREGARD PARISHES HAS BEEN ALLOWED TO EXPIRE.

ADDITIONAL SHOWERS AND THUNDERSTORMS WILL MOVE INTO THE AREA DURING
THE OVERNIGHT HOURS INTO WEDNESDAY MORNING. AFTER THE HEAVY RAINS
OF TODAY...THE GROUND IS SATURATED AND ADDITIONAL HEAVY RAINS COULD
LEAD TO ADDITIONAL FLOODING. THEREFORE A FLASH FLOOD WATCH REMAINS
IN EFFECT THROUGH MIDDAY WEDNESDAY. RESIDENTS ARE URGED TO REMAIN
ON TOP OF THE SITUATION...AND BE READY IN CASE ADDITIONAL WARNINGS
ARE NEEDED.

$$

LGE

The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 4, 7:07 AM CSTFlash Flood WarningLCHCalcasieu3 hr

Nearby

Flash Flood Warnings in Louisiana, 2002Every flash flood warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.